Climate activists Lesley Butler and Rob Bell (R) "sunbathe" on the edge of a frozen fjord in the Norwegian Arctic town of Longyearbyen April 25, 2007. REUTERS/Francois Lenoir   IPOs have been described as a company’s coming-out party but these days it’s more like a “testing the waters” event – which may or may not happen depending on the temperature. Find the latest IPO news below.

CBOE files for $300 million IPO (Reuters)
“The Chicago Board Options Exchange will pay a special dividend of $113 million before the IPO to its current stakeholders, and annual dividends of 20 to 30 percent of prior-year net income to shareholders after the IPO, the company said in filings with the Securities and Exchange Commission.”

Kabel Deutschland IPO – ambitious play or cunning ploy?
(Reuters)
“Kabel Deutschland’s premium pricing for its $1 billion IPO could invite a similar fate to other recent failed private equity-led offerings, and some still think it’s a ploy to smoke out trade buyers.”

Samsung Life gets bourse nod for record $4 billion IPO (Reuters)
“Fund managers and analysts are cautious in predicting demand for Samsung Life, ranked 14th among global life insurers in premiums received, but said the IPO would attract developing market-focused funds.”

Sensata Rises on Stock Debut (WSJ)
“If Netherlands-based Sensata Technologies Holding B.V. can hang on to its gains for the entire session, it would be the first time a new stock priced within range and rose on the first day of trading in the U.S. since January.” – WSJ

UK clean tech to try luck in uncertain IPO market (Reuters)
“British companies involved in the waste and energy efficiency sectors are considering flotations to raise funds for growth even as the IPO market remains uncertain.”